My 82 year old father was travelling recently on NW from CLE to SEA to visit us. He arrived at the airport in CLE and went to check in....he had a short pleasant exchange with the agent who obviously was not having a great day and at the end of the conversation she said in a routine rehearsed, probably insincere sounding manner " Thank you for flying NW, Mr. XXXXX. We appreciate your business...." My father, who can be quite funny and candid, said. " Oh, bullsh#t." They both laughed and she asked for his boarding pass back. His first thought was that she was upset at this 82 year old's language.... but as she was typing away she said " My partner and I agreed this morning that the first passenger to make us laugh we would upgrade... thank you for making our day. " He was tickled pink to be riding up front for the journey.....